Tomographic approach for the quantitative scene reconstruction from light field images

Nicola Viganò, Henri Der Sarkissian, Charlotte Herzog, Ombeline de la Rochefoucauld, Robert van Liere, Kees Joost Batenburg
2018 Optics Express  
Current computational methods for light field photography model the ray-tracing geometry inside the plenoptic camera. This representation of the problem, and some common approximations, can lead to errors in the estimation of object sizes and positions. We propose a representation that leads to the correct reconstruction of object sizes and distances to the camera, by showing that light field images can be interpreted as limited angle cone-beam tomography acquisitions. We then quantitatively
more » ... lyze its impact on image refocusing, depth estimation and volumetric reconstructions, comparing it against other possible representations. Finally, we validate these results with numerical and real-world examples.
doi:10.1364/oe.26.022574 pmid:30184917 fatcat:mwvh3ojvpbfttgvdqqe7vm65hm